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119899 | Nitrite standard solution

2-3 Gün 119899 | Nitrite standard solution image

Merck - 119899 | 119899 | Nitrite standard solution

traceable to SRM from NIST NaNO₂ in H₂O 1000 mg/l NO₂ Certipur®

Description
Catalogue Number 119899
Synonyms Nitrite standard for aqueous matrices ready foruse
Product Information
HS Code 2834 10 00
Physicochemical Information
pH value 7 (H₂O, 20 °C)
Safety Information according to GHS
Storage class 10 - 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 28Aqueous solutions: Container D.
Storage and Shipping Information
Storage Store at +15°C to +25°C.
Specifications
Concentration     β (NO₂⁻) 990 - 1010 mg/l
Determination method: Cerimetric titration.The content of this solution was determined by back-titration with Ammonium(II) ferrous sulfate (article number 1.03792) standardized by Cerium(IV) sulfate (article number 1.09092) against volumetric standard Iron(II)ethylendiammonium sulfate (article number 1.02402). The expanded measurement uncertainty is ± 0.7 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 8040 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard Iron(II)ethylendiammonium sulfate measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.
  • Üretici: Merck
  • Ürün Kodu: 119899
  • Stok Durumu: 2-3 Gün
  • 29,69€ +KDV
  • Satış Fiyatı : 269,49TL
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